Organized and Compact. The OC Cases are an ideal add-on for our larger tool bags or as a stand-alone storage solution. Designed for versatility, each case provides a semi-rigid protective shell for specialized tools & electronics. With a number of available V-SWAP panels, each case can be outfitted with up to 3 different organizational components. The medium-sized OC140 includes 1 V-SWAP panel with elastic tension straps, a removable zippered parts bag folio, and an exclusive double-gated carabiner that can connect in multiple locations. For any project, choose to include no panels, 1 panel or any two panels. There are 35 possible configurations for the OC140.